Funding for this research was provided by:
the National Natural Science Foundation of China (61803127)
the Natural Science Foundation in Heilongjiang Province, China (YQ2019F012)
Postdoctoral Science Foundation of China (2019M661463)
the Fundamental Research Foundation for Universities of Heilongjiang Province, China (2019-KYYWF-0210)
the University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province, China (UNPYSCT-2017093)
Article History
Received: 24 November 2020
Accepted: 23 March 2021
First Online: 11 April 2021
Declarations
:
: The authors declare that they have no conflict of interest.